[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH 2/2] target-arm: Fix SWI (SVC) instruction in M prof
From: |
Peter Maydell |
Subject: |
[Qemu-devel] [PATCH 2/2] target-arm: Fix SWI (SVC) instruction in M profile. |
Date: |
Fri, 11 Jan 2013 15:36:55 +0000 |
From: "address@hidden" <address@hidden>
When do_interrupt_v7m is called with EXCP_SWI, the PC already
points to the next instruction. Don't modify it here.
Signed-off-by: Alex Rozenman <address@hidden>
Signed-off-by: Peter Maydell <address@hidden>
---
target-arm/helper.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/target-arm/helper.c b/target-arm/helper.c
index 0525aec..66ab78e 100644
--- a/target-arm/helper.c
+++ b/target-arm/helper.c
@@ -1736,7 +1736,7 @@ static void do_interrupt_v7m(CPUARMState *env)
armv7m_nvic_set_pending(env->nvic, ARMV7M_EXCP_USAGE);
return;
case EXCP_SWI:
- env->regs[15] += 2;
+ /* The PC already points to the next instruction. */
armv7m_nvic_set_pending(env->nvic, ARMV7M_EXCP_SVC);
return;
case EXCP_PREFETCH_ABORT:
--
1.7.9.5